It's been quite a while since I last installed Gentoo but I'm sure I had the same issue before. During the install everything goes as planned, but when I get to 2.15 and enter 'emerge-webrsync' it errors out with:

!!! Section 'gentoo' in repos.conf refers to repository without repository name set in '/usr/portage/profiles/repo_name'
emerge-webrsync: error: Repository 'gentoo' not found

Now as I'm following the Handbook instructions 'to the letter' if I'm having problems installing others must be too. Mind you it could just be me being dumb

If anyone can point me to what I need to do to install Gentoo I'd appreciate it.

!!! Section 'gentoo' in repos.conf refers to repository without repository name set in '/usr/portage/profiles/repo_name'
emerge-webrsync: error: Repository 'gentoo' not found

Which profile are you using?

Code:

eselect profile list

I came across this when I selected a hardened profile by mistake, but didn't follow through with it because i wasn't targetting a hardened platform. If this is a genuine issue with hardened, then perhaps a bug should be filed against it. That being said, manually getting a portage snapshot and putting it in place should give you a workaround.

This is a regression that was introduced with Portage 2.2.1 that was fixed in Portage 2.2.7, but unfortunately, stage3 building has been broken since before Portage 2.2.7 was stabilized, so the latest stage3 still use Portage 2.2.1 which is still broken. It's been a few months now. I'm sure there's a good reason. But there's nothing missing from the documents, it's just that the files you are downloading are broken. You aren't doing anything wrong.